function iframeAuto() {
    try {
        if (window != parent) {
            //定位需要调整的frame框架（在父级窗口中查找）
            var a = parent.document.getElementsByTagName("iframe");
            for (var i = 0; i < a.length; i++) {
                if (a[i].contentWindow == window) {
                    var h1 = 0, h2 = 0;
                    a[i].parentNode.style.height = a[i].offsetHeight + "px";
                    a[i].style.height = "10px"; //首先设置高度为10px,后面会修改
                    if (document.documentElement && document.documentElement.scrollHeight) {
                        h1 = document.documentElement.scrollHeight;
                    }
                    if (document.body) h2 = document.body.scrollHeight;
                    var h = Math.max(h1, h2); //取两者中的较大值
                    if (document.all) { h += 4; }
                    if (window.opera) { h += 1; }
                    //调整框架的大小
                    a[i].style.height = a[i].parentNode.style.height = h + "px";
                }
            }
        }
    }
    catch (ex) { }
}
//事件绑定的方法，支持IE5以上版本
if (window.attachEvent) {
    window.attachEvent("onload", iframeAuto);
}
else if (window.addEventListener) {
    window.addEventListener('load', iframeAuto, false);
}
